Abrasive apparatus.



0. G. WYSONG.

ABBASIVE APPARATUS.

APPLIOATION rmm APR. 23, 1912.

w m M w M 3 W m w C P m M 6 COLUMBIA PLANOCIRAPH c0 WAlHINGTDN, D. c.

0. O. WYSONG.

ABRASIVE APPARATUS.

APPLICATION FILED APR.23,1912,

Patented May 19, 1914.

3 SHEETS-SHEET 2.

0. G. WYSONG.

ABBASIVE APPARATUS.

APPLICATION FILED APR. 23, 1912.

Patented May 19, 1914.

3 SHEETS-SHEET 3.

COLUMBIA r LANoanAPu c0.. WASHINGTON. D. c

9 are detail views of different belt supportrial, one belt being usedfor the rough or UNTTED STATES PATENT OFFICE.

OLMEDO CORTEZ WYSONG, OF GREENSBORO, NORTH CAROLINA.

ABRASIVE APPARATUS.

To all whom it may concern:

Be it known that I, OLMEDO Con'rnz \VY- sono, a citizen of the UnitedStates, residing at Greensboro, in the county of Guilford and State ofNorth Carolina, have invented certain new and useful Improvements inAbrasive Apparatus, of which the following is a specification.

My invention relates to improvements in abrasive apparatus.

One of its objects is to provide mccha nism. comprising one or moreabrasive belts supported upon pulleys carried by standards adapted to belocated any desired distance apart, and provided with means for adjust-:ing the belt or belts relative to one of said standards to adjust boththe upper and the lower reaches of the abrasive belt or belts toposition for use by the operator.

Another object is to provide in connection with such apparatus anadjustable work supporting table adapted to be manipulated inconjunction with said belt or belts.

Another object is to provide improved means for adjusting one of thebelt supporting pulleys both vertically and horizontally relative to itssupporting standard.

My invention further consists in certain details of form, combinationand arrangement, all of which will be more fully set forth in thedescription of the accompanying drawings, in which- Figure 1 representsa side elevation of my improved mechanism. Fig. 2 is a perspective viewof one of the belt supporting forms. Fig. 8 is a top plan view of themechanism illustrated in Fig. 1. Figs. 1 and are detail views ofdifferent belt support ing and shaping forms or supports. Fig. 6 is aside elevation of one of the belt supporting standards, being a section011 line m of Fig. 1. Fig. 7 is a side elevation of the opposite beltsupporting standard, being a section on line 4) o of Fig. 1. Figs. 8 anding and shaping forms or supports.

in the accompanying drawings illustrating the preferred embodiment of myinvention, 1 have shown two abrasive belts A anu A mounted side by sideupon driving pulleys 2 and 3 and idler pulleys 4c and Where two beltsare employed one is usually coated with coarse abrasive material and theother with fine abrasive mate- Specification of Letters Patent.

Application filed April 23, 1912.

Patented May 19, 1914. Serial No. 692,651.

preliminary work, and the other for the final or polishing operation. Asingle broad belt upon single driving and idler pulleys may also beemployed, depending upon the work to be treated.

The abrasive belt driving pulleys 2 and 3 are rigidly mounted upon ashaft (5 which is ouflnaled upon a frame or standard B adapted to bebolted to the floor (J. Tight and loose pulleys 7 and 8 at the oppositeend of the shaft 6 provide for driving the shaft (3 by means of a belt 9from a line shaft. A. belt shifter 10 carried by the standard B enablesthe belt 9 to be shifted to control the movements of the shaft 6. Aslotted cross-bar 11., preferably of wood is carried by a bracket 12attached to the standard B, and the abrasive belts A A travel throughthe slot in said cross-bar. Mounted upon the lower fork of the cross bar11 is a yoke-shaped bracket (4, the eye of which is adapted to receiveand vertically support a detachable pin or bar 13 interposed between thebelts A A to assist in holding said belts in place upon the drivingpulleys 2, 3, and to prevent their interfering with each other.

The standard supporting the idler pulleys 4t and 5 comprises inconnection with adjustable members mounted thereon, a base member I),which is adapted to no bolted to the floor O either close to or at aconsiderable distance from the standard B, depending upon the length ofthe abrasive belts, and the character of work chiefly required to betreated. Thus where a majority of the work to be treated is long pieces,long abrasive belts would be employed and the standards B, 1) located aconsiderable distance apart, while if the majority of the work was to beshort pieces, short belts would be employed and the standards locatedcloser to each other, which however would not interfere with thetreatment of long pieces of work if required. Standards B, l), are thuscapable of adjustment with ing member 15 seated in the bore of a post 16forming part of the member I). Said hollow post 16 is slotted at l? andadapted to be clamped upon the member 15 to lock the parts to adjustedposition. A screw rod 19 seated in and engaging the threads ed interiorof a post or sleeve 18 forming part of the member D, provides for thevertical adjustment of the member 15 relative to member D. In order torotate the screw 19 I provide a spiral gear 20 on said screw rod, whichis in mesh with a spiral gear 21 on a shaft 22 carried in journals onthe arm or bracket 23 of the member E, said shaft 22 being provided atits projecting end with a wrench seat to enable it to be turned torotate the screw rod 19 and adjust the height of the member E. I videdfor clamping. the plate It to its adjusted position relative to themember 1).

Substantially horizontal ways 25 are provided at the upper end of themember E, upon which ways is mounted an adjustable member F, which isadjustable relative to member E by means of a rack 26 carried by memberF and a pinion 27 journaled by shaft 28 to member E and adapted to beturned by a hand wheel 29.

Mounted upon the member F, and pivotally connected thereto by means of abolt 30 is a ,member H which is provided with journal. boxes 31, 32 tosupport the shaft 33 of the idler pulleys t and 5. The pivotal movementof the member H relative to member F is limited by means of a bolt 34passing through a curved slot in the member H and threaded into themember F, and which bolt serves to lock said members together whenproperly adjusted. A projection 35 on the member .l-l enters between twocars 36, 37 projectin from member F, and is engaged upon opposite sidesby thumb screws 39, 4O threaded through the ears 36, 37, by means ofwhich the desired pivotal adjustment of the member H is accuratelysecured, and said thumb screws also assist in locking the membe H toadjusted position. The member H is also supported by means of a link 41pivoted to an ear 4.2 proj ecting from the member H and extensively oradjustably connected to the bracket 23 by means of bolts passing throughslotted openings in the link 41, and adapted to clamp the link 41 tobracket 23 so as to support the overhanging portion of the member Hafter being adjusted to position.

The member H is also provided with standards 43, 44: carrying a shaft orrod 41-5.

Pivotally mounted upon the rod L5 are arms 46, 47 at the free ends ofwhich are rollers i8, 49 adapted to project between the upper and lowerreaches of the respective belts A, A and to engage or bear upon theinner faces of said belts either for the purpose of tensioning saidbelts or for tension- A wrench is also proing and shaping said belts.Said rollers are pivotally mounted upon stud shafts 50 carried by thefree ends of said arms 46 and 4:7, and are adapted to engage either theupper or lower reaches of said belts. Each of said arms 46, 1-7 isprovided with an arm 51 provided with a counterweight 52 to hold therespective rollers in contact with the abrasive belts, said arms 51being adjustable as indicated in Figs. 8 and 9 to press said rollersagainst either the upper or lower reach of the abrasive belts.

Slotted arms 53, 54; adjustably secured to the standards 13, D areadapted to adjustably support at their free ends 55 either stationaryforms 0 of the general character indicated in Figs. 2 and 5 or rotaryforms f as indicated in Fig. a to either shape or tension the abrasivebelts.

K represents the base of a work supporting table. L represent verticallyadjustable members which are capable of being adjusted in unison bymeans of two screw rods 60 threaded to the members L and provided withbeveled gears 61 meshing with beveled gears (32 on the horizontal shaft68,

which is adapted to be turned by the hand wheel 6st. The members L areprovided at their upper ends with pivotally connected cross ralls 65capable of adjustment to varying degrees of angularity by means ofslot-' ted segments 66. The table top M is. pro-' vided with rollers 6:adapted to t avel crosswise of the abrasive belts uponfthe tracks orrails 65, being limited by (38 at the ends of the rails.

the stops Lid As illustrated in Fig. 1 the various parts i are adjustedto receive the work upon the work table and between said table and thelower reaches of the abrasive belts, so that the belts travel normallyslightly out of con tact with the work, said belts being tellsioned bythe rollers 4-8 and For treating plain or flat faced'work the belts arestraight in cross section as indicated in Figs. 6 and '7, while fortreating work with curved or irregular faces, such as moldings forinstance, the belts are shaped in cross section by means of rotary o tti forms as indicated in Figs. 2, 4t, and 8, to approximately theoutline of the-work to be treated. The belts are then by means of a formin the hand of the operator pressed into contact with the face of thework until it is sufficiently polished.

lVhen it is desired to use the upper reach of the abrasive belts asindicated in Figs. 5

and. 9, the work table M is either lowered away from the belts, orremoved from beneath the belts, whereupon the member E is. lowered untilthe upper reach of the belts adjacent to the idler pulleys at and 5 islow enough so that the operator can conveniently apply the work to theupper face thereof. Figs. 2 and 5 indicate a class of stationary formsadapted to support and if desired shape the belts for polishing shortarticles such as chair backs, and drawer fronts, while Fig. 9 indicatesan adjustment of parts for polishing legs, spokes and other parts, inwhich the pressure of the work upon the belt between the roller 49 andthe idler pulley 5 causes the belt to assume substantially the positionindicated in dotted lines. The pivotal adjustment of the member Hrelative to member l provides for alining the idler pulleys to cause theabrasive belts to travel centrally thereon, and the adjustment of themember F relative to member E provides for securing the desired amountof slack in the abrasive belts. If desired the arms 40 and 47 may besupported upon independent stud shafts carried by the standards 4L3, 44Linstead of througl'i rod 45. It will be noted that the member 1-1overhangs the horizontally adjustable member I? so that the idlerpulleys t, 5 are at one side of said member F, and that the drivingpulleys are at one side of the standard B, which provides for placingvery long pieces of work upon the table M without contacting with orinterfering with the mechanism or supports, even though the ends of thework project beyond the driving or idler pulleys.

For ordinary purposes a single set of tensioning rollers 48, 4:9 andcounterweights 52 carried as illustrated in Fig. 1 upon the verticallyadjustable standard will be found to answer all requirements. Saidrollers or forms and their counterweights may however tor certainclasses of work be mounted upon the standard B. It is also advantageousunder certain circumstances to simultaneously employ two duplicate setsof rollers 4:8, 49, or forms and countcrweights 52, one set carried uponthe standard I) and the other set mounted upon the standard B.

Usually the lioor to which the standards B, D are attached will be foundto give suliicient support to resist the tension of the sand belttending to draw the driving and idler pulleys toward each other. For useif desired with unusually long or heavy belts, or where the floorsupport is not sufficient, I prel.era.bly provide sockets carried by thestandards B, D to receive the ends of a rigid piece of timber or metalbar 81 cut to the required length, and which upon being bolted inplaceserves in addition to the floor to retain the standards rigidly in placeand the desired distance apart.

The i'nechanism herein illustrated and de scribed is capable ofconsiderable modification without departing from the principle of myinvention.

Having described my invention, what I claim is;

1. In a mechanism of the character described, an abrasive belt, adriving pulley and an idler pulley to support and propel said belt, astandard to which said driving pulley is journaled, and an independentvcrtically adjustable standard to which said idler pulley is journaled,said standards be.- ing capable of independent attachment upon a commonsupport to enable said standards to be set at dil'l'erent distancesapart.

2. In a mci'zhanism ot the character described, an abrasive belt, adriving pulley and an idler pulley to support and propel said belt, astandard to which said driving pulley is journalcd, a verticallyadjustable standard to which said idler pulley is journaled, and animlcpendent vertically adjustable table beneath said belt, saidstandards being capable of independent attachment upon a common support.

3. in a mechanism of the character described, an abrasive belt, adriving pulley and an idler pulley to support and propel said belt, astandard to which said driving pulley is journaled, and a standard towhich said idler pulley journalcd said idler pulley standard comprisinga base, a mem ber vertically adjustable relative to said base, a membermounted upon said vertically adjustable member and adjustable relativethereto in a substantially horizontal direction and. substantially inline with the belt travel, and a member pivotally adj ustable relativeto said horizontally adjustable member, said pivotally adjustable memberbeing provided with journal hearings to support said idler pulley.

at. In a mechanism of the character described, an abrasive belt, adriving pulley and an idler pulley to support and propel said belt, astandard to which said driving pulley is journalcd, and a standard towhich said idler pulley is jourmiled, said idler pulley standardcomprising a base, a member vertically adjustable relative to said base,a member mounted upon said vertically adjustable member and adjustablerelative thereto in a substantially horizontal direction andsubstantially in line with the belt travel, and a member pivotally:uljustable upon and relative to said horizontally adjustable member,said pivotally adjustable member being provided with journals to supportsaid idler pulley and with means to yieldingly tension said abrasivebelt.

5. In a mechanism ol? the character described, an ab 'asive belt, adrivii'ig pulley and an idler pulley to support and propel said belt, astandard to which said driving pulley is journaled, a standard to whichsaid idler pulley is journaled, said idler pulley standard comprising abase, a member vertically adjustable relative to said base, mechanism topositively adjust said verti- Cally adjustable member, a member mount edupon said vertically :uljushible member and adjustable relative theretoin a substantially horizontal direction and substantially in line withthe belt travel, and a member carried by and pivotally adjustablerelative to said horizontally adjustable member, said pivotallyadjustable member being provided with journal bearings to support saididler pulley.

6. In a mechanism of the character described, an abrasive belt, adriving pulley and an idler pulley to support and propel said belt, astandard to which said driving pulley is ournaled, and a standard towhich said idler pulley is journaled, said idler pulley standardcomprsing a base, a member carried by and vertically adjustable relativeto said base, a member mounted upon said vertically adjustable memberand adjustable relative thereto in a substantially horizontal directionand substantially in line with the belt travel, mechanism to positivelyadjust said horizontally adjustable member and a member pivotallyadjustable upon and relative to said horizontally adjustable member,said pivotally adjustable memberbeing provided with journal bearings tosupport said idler pulley.

7. ln a mechanism of the characterdescribed, an abrasive belt, a drivingpulley and an idler pulley to support and propel said belt, a standardto which said driviz'u pulley is journaled, and a standard to which saididler pulley is journaled, said idler pulley standard comprising a base,member carried by and vertically adjustable relative to said base, amember med upon said vertically adjustable meniler adjustable relativethereto in a substantially horizontal. direction and substantially inline with the belt travel, and a member carried by and pivotallyadjustable relative to said horizontally adjustable member, mechanism topositively adjust rid pivotally adjustable member, and journal bearingscarried by said pivotally adjustable member to support said idlerpulley.

Eiln a mechanism of the character described, an abrasive belt, a drivingpulley and an idler pulley to support and propel. said belt, a standardto which said driving pulley is journaled, and a standard to which saididler pulley is journaled, said idler pulley standard comprising a base,a member vertically adjustable relative to said base, a member mountedupon and pivotally adjustable relative to said vertically adj ustablemember, and provided with journal boxes to support said idler pulley,and a counterweighted abrasive belt tensioning member supported uponsaid pivotally adjustable member.

9. In a mechanism of. the character described, an abrasive belt, adriving pulley and an idler pulley to support and propel said belt, astandard to which said driving said idler pulley is journaled, saididler pulley standard comprising a base, a member vertically adjustableupon and relative to said base, a member mounted upon said verticallyadjustable member and adjustable relative thereto in a substantiallyhorizontal direction and substantially in line with the belt travel, anda member carried by and pivotally adjustable relative to saidhorizontally adjustable member, said pivotally adjustable memberoverhanging said.

horizontally adjustable member and being provided with journal bearingsto support said idler pulley at one side of said horizontally adjustablemember. 7

10. ln a mechanism of the character described, an abrasive belt, adriving pulley and an idler pulley to support and propel said belts, astandard to which said driving pulley is journaled, and a standard towhich said idler pulley is j ournaled, said idler pulley standardcomprising a base, a member carried by and vertically adjustablerelative to said base, and a member mounted upon and pivotallyadjustable relative to said vertically adjustable member and providedwith journal boxes tov support said idler pulley, said idler pulleybeing adjustable to bring either the upper or lower reach of said beltto operative position, and mechanism carried by said idler pulleystandard to support a form in contact with the rear face of said belt.

11. in a mechanism of the charaoterde.

scribed, a plurality of substantially parallel abrasive belts,drivingpulleys and idler pulleys to support and propel said belts, astandard to which said driving pulleys are jeurnaled, and a standard towhich said idler pulleys are journaled, said idler pulley standardcomprising a base, a member car ried by and vertically adjustablerelative to said base, a member mounted upon and pivotally adjustablerelative to said vertically adjustable member and provided with journalboxes to support said idler pulleys, and means to independently tensionsaid respective belts. V

12. In a mechanism of the character described, a plurality of adjacentand substantially parallel abrasive belts, driving pulleys and idlerpulleys to support and propel said belts, a standard to which saiddriving pul pulley is j ournaled, and a standard to which allyadjustable member being provided with 13. In a mechanism of thecharacter described, an abrasive belt, a driving pulley and an idlerpulley to support and propel said belt a standard to which said drivingpulley is j ournaled, a standard to which said idler pulley isjournaled, said idler pulley standard comprising a base, a membervertically adjustable relative to said base, a member mounted upon andpivotally adjustable relative to said vertically adjustable member, andprovided with journal boxes to support said idler pulley, and anabrasive belt tensioning member carried by one of said standards andengaging said belt and exerting a yielding tension thereon.

14:. In a mechanism of the character dcscribed, an abrasive belt, adriving pulley and an idler pulley to support and propel said belt, astandard to which said driving pulley is journaled, a standard to whichsaid idler pulley is journaled, said idler pulley standard comprising abase, a member vertically adjustable relative to said base, a membermounted upon said vertically adjustable member and adjustable relativethereto in a substantially horizontal direction and substantially inline With the belt travel, and a member carried by and pivotally adjustable relative to said horizontally adjustable member and providedwith journal boxes to support said idler pulley, and an abrasive beltteusioning member carried by one of said standards and engaging saidbelt and exerting a yielding tension thereon.

15. In a mechanism oi the character described, an abrasive belt, adriving pulley and an idler pulley to support and propel said belt,supporting members spaced the desired distance apart by means of a rigidconnection, one of said pulleys being journaled to one of saidsupporting members, and the other supporting member being provided witha member adjustable transversely of the belt line and to which the otherof said belt pulleys is journaled.

16. in a mechanism of the character described, an abrasive belt, adrivin pulley and an idler pulley to support ant propel said belt,standards spaced the desired distance apart by means of a rigidconnection, one of said pulleys being journaled to one 01 saidstamlards, and the other standard being provided with a verticallyadjustable member to which the other of said pulleys is j ournaled.

In tUSlIllHODy whereof I have allixed my signature in presence of twowitnesses.

OLMEDO CORTEZ WYSONG. Witnesses:

J. 11. BnowN, GUY BRANSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of ratents, Washington, D. G.

